公开(公告)号：US11811283B2

公开(公告)日：2023-11-07

申请号：US17007338

申请日：2020-08-31

Applicant: ROLLS-ROYCE plc

Inventor： David F. Brookes

IPC: H02K3/28 ,  H02K1/16 ,  H02K3/14 ,  H02K3/24 ,  H02K3/42 ,  H02K3/493 ,  H02K15/00 ,  H02K15/02 ,  H02K15/085 ,  H02K15/12 ,  H02K21/14 ,  H02K7/18 ,  H02K9/197

CPC classification number: H02K3/28 ,  H02K1/165 ,  H02K3/14 ,  H02K3/24 ,  H02K3/42 ,  H02K3/493 ,  H02K7/1823 ,  H02K9/197 ,  H02K15/0018 ,  H02K15/024 ,  H02K15/085 ,  H02K15/12 ,  H02K21/14 ,  H02K2213/06

Abstract: A stator for a radial-flux rotary electric machine includes a yoke with a plurality of teeth, each tooth extending from a root at the yoke to a tip. The stator further includes a plurality of coils, each one of which being located on a respective one of the plurality of teeth, the coils being sized such that a slot fill factor is between zero and unity to define axial voids in the slots. The stator further includes a plurality of magnetic sealing members, each one of which being engaged with the tips of adjacent teeth to circumferentially and axially seal the axial voids in the slots for retaining an axial flow of coolant therein, the magnetic sealing members being composed of a magnetic material to provide a flux path between adjacent tooth tips to increase an amount of leakage flux.

公开(公告)号：US11811280B2

公开(公告)日：2023-11-07

申请号：US17271564

申请日：2019-11-04

Applicant: GE Energy Power Conversion Technology Limited

Inventor： Christophe Galmiche ,  Remy Muller ,  Pierre Humbert

IPC: H02K17/16 ,  H02K1/28 ,  H02K15/00

CPC classification number: H02K17/165 ,  H02K1/28 ,  H02K15/0012

Abstract: The rotor for a squirrel-cage asynchronous rotating electrical machine comprises two compaction elements clamping a cylindrical magnetic mass, short-circuit rings facing the face of the compaction elements opposite that in contact with the magnetic mass, and conductive bars housed in recesses in the magnetic mass and distributed evenly over at least one diameter of the magnetic mass such that the short-circuit rings and the conductive bars form a squirrel cage.
Retaining means distributed over at least one diameter of each short-circuit ring and over at least one diameter of each compaction element interact so as to secure the short-circuit rings and the compaction elements together, the pitch circle diameters of the retaining means on the rings and the compaction elements being smaller than the pitch circle diameter of the conductive bars.

公开(公告)号：US11804756B2

公开(公告)日：2023-10-31

申请号：US18023627

申请日：2021-08-25

Applicant: Siemens Aktiengesellschaft

Inventor： Karsten Brach ,  Jens Dahl Jensen ,  Hartmut Rauch ,  Jakob Schneck ,  Oliver Stier

IPC: H02K15/00 ,  H02K3/26 ,  H02K17/16 ,  B33Y80/00 ,  B33Y40/20 ,  B22F10/64 ,  H02K15/04

CPC classification number: H02K15/0012 ,  B22F10/64 ,  B33Y40/20 ,  B33Y80/00 ,  H02K3/26 ,  H02K15/0407 ,  H02K17/166 ,  H02K17/168 ,  B22F2998/10

Abstract: An active part of an electric machine includes electrical conductors which are additively printed in layers, and intermediate bodies respectively disposed between the electrical conductors and being additively printed in layers, wherein the electrical conductors are printed in a radially increasing manner, alternating with the intermediate bodies. A contact layer

公开(公告)号：US20230344298A1

公开(公告)日：2023-10-26

申请号：US18178244

申请日：2023-03-03

Applicant: Mitsubishi Electric Corporation

Inventor： Hironori TSUIKI ,  Kazuya HASEGAWA

IPC: H02K3/50 ,  H02K15/00 ,  H02K15/12

CPC classification number: H02K3/50 ,  H02K15/0062 ,  H02K15/12 ,  H02K2203/09

Abstract: Provided is an armature for a rotating electric machine, including: an armature core; and a plurality of windings, wherein the armature core includes a plurality of teeth, wherein each of the plurality of windings includes: a slot portion; and a coil end portion, wherein a coil terminal which is an end portion of each of the plurality of windings is formed on the coil end portion, wherein the armature further includes a wire connection plate including: a power feeding unit to which power is supplied from an outside; and a component having an insulating property and being integrated together with the power feeding unit, wherein the power feeding unit is joined to the coil terminal of at least one winding of the plurality of windings through a first connecting portion, and wherein the wire connection plate is fixed to the coil end portion.

公开(公告)号：US20230344291A1

公开(公告)日：2023-10-26

申请号：US18009961

申请日：2021-08-18

Applicant: ASTER CO., LTD.

Inventor： Takenobu HONGO

IPC: H02K3/18 ,  H02K1/14 ,  H02K3/34 ,  H02K15/00 ,  H02K15/10

CPC classification number: H02K3/18 ,  H02K1/146 ,  H02K3/34 ,  H02K15/0068 ,  H02K15/105

Abstract: Provided are a coil capable of enhancing heat dissipation performance and/or voltage resistance, and a stator and a motor using the coil.
A coil includes a helical structure body made of strip-shaped flat conductors that are continuously joined into a helical form. In the helical structure body, a first turn of helix is separated from a second turn, which is continuous to the first turn, at a preset interval.

公开(公告)号：US11799357B2

公开(公告)日：2023-10-24

申请号：US17606473

申请日：2020-04-03

Applicant: Vestas Wind Systems A/S

Inventor： Lars Langvardt Krogh ,  Peter Mongeau ,  Joris Kofman

IPC: H02K7/18 ,  H02K15/00 ,  H02K15/14

CPC classification number: H02K7/1838 ,  H02K15/0006 ,  H02K15/14

Abstract: An electrical power generator for a wind turbine comprising: a generator housing, a stator at a radially outward position and a rotor in a radially inward position, wherein the rotor comprises a cylindrical ring structure arranged about a rotational axis, R, and defining a central hollow portion. The electrical power generator further comprises a rotor shroud attached to the generator housing and which extends about the rotational axis, R, wherein the rotor shroud includes a dome portion that extends into the central hollow portion of the rotor so as to protect the cylindrical ring structure of the rotor. Advantageously, the rotor shroud provides a tunnel-like surface that extends into the central hollow portion of the generator so as to prevent objects such as tools from contacting components of the rotor. The invention also relates to a method for 15 assembling such an electrical power generator with a rotor shroud.

公开(公告)号：US11777360B2

公开(公告)日：2023-10-03

申请号：US17452166

申请日：2021-10-25

Applicant: BorgWarner Inc.

Inventor： Christopher Joel Maurus ,  Jeffrey Carter ,  Tyler Ransom Garrard

IPC: H02K3/52 ,  H02K1/20 ,  H02K7/18 ,  H02K15/00 ,  F04D17/10 ,  F04D25/06 ,  F04D29/043 ,  F04D29/063

CPC classification number: H02K3/522 ,  F04D17/10 ,  F04D25/06 ,  F04D29/043 ,  F04D29/063 ,  H02K1/20 ,  H02K7/1823 ,  H02K15/0031 ,  H02K2203/12

Abstract: An electrically-assisted turbocharger includes a shaft extending along an axis, a compressor wheel, a turbine wheel, a housing, and an electric machine. The electric machine includes a rotor rotatably coupled to the shaft and a stator lamination stack radially spaced from the rotor. The stator lamination stack has circumferentially spaced teeth defining gaps therebetween. The electric machine also includes a coil winding disposed in the gaps between the circumferentially spaced teeth and a guard plate disposed at one of the first and second stator ends. The guard plate extends radially away from the axis and includes a plurality of teeth guards extending radially, with each of the teeth guards aligned with one of the teeth of the stator lamination stack to electrically insulate the coil winding from the teeth of the stator lamination stack.

公开(公告)号：US11777358B2

公开(公告)日：2023-10-03

申请号：US17195950

申请日：2021-03-09

Applicant: Torsten Mueller ,  Harald Mueller

Inventor： Torsten Mueller ,  Harald Mueller

IPC: H02K3/52 ,  H01R31/00 ,  H01R31/02 ,  H02K15/00 ,  H02K5/22

CPC classification number: H02K3/522 ,  H01R31/00 ,  H01R31/02 ,  H02K5/225 ,  H02K15/0062 ,  H01R2201/10 ,  H02K2203/09

Abstract: The disclosure relates to an electrical machine for a drive system of an electrically driven aircraft and its winding system. In particular, the disclosure relates to an interconnection unit for interconnecting the windings of the winding system. For electrically connecting winding arrangements of the winding system, the interconnection unit has a connection arrangement with large number of contact points which are configured and arranged on the interconnection unit such that these contact points of the interconnection unit may be connected to contact points of the winding arrangements to be contact-connected. The connection arrangement furthermore has a large number of electrical connection sections, wherein a respective connection section connects two of the contact points to one another. This interconnection unit may be contact-connected by way of its contact points to corresponding contact points of the winding arrangements, so that a desired winding system may be constructed in a simple manner.

公开(公告)号：US20230307997A1

公开(公告)日：2023-09-28

申请号：US18089894

申请日：2022-12-28

Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft

Inventor： Florian Braunbeck ,  Markus Omlor

IPC: H02K15/00 ,  B23K26/32

CPC classification number: H02K15/0081 ,  B23K26/32 ,  B23K2101/38

Abstract: A method is provided for producing a winding (1) for an electric machine (10). The winding (1) has conductor elements (2) and two conductor ends (3) of different conductor elements (2) are bonded electrically with one another at a bonding point (4). The method includes arranging at least one material reservoir (5) on the conductor ends (3) to be bonded prior to generating the bonding point (4). The method then includes generating the bonding point (4) by joining the conductor ends (3). The method continues by melting the material reservoir (5) and distributing the molten material reservoir (5) at least over the bonding point (4). Thus, an insulating structure (15) is provided after cooling the distributed material of the material reservoir (5). The insulating structure (15) insulates the conductor ends (3) against their surroundings at least at the bonding point (4).

公开(公告)号：US20230299650A1

公开(公告)日：2023-09-21

申请号：US18006547

申请日：2021-07-26

Applicant: PRO-BEAM GMBH & CO. KGAA

Inventor： Jorg Walther ,  Holger Uhlmann

IPC: H02K15/00 ,  B21F3/00

CPC classification number: H02K15/0081 ,  B21F3/00

Abstract: A positioning device (10; 50; 60) for positioning wire ends (14) in the manufacture of an electrical machine (12) has a positioning unit (13) which has an alignment element (22a) and a counter-alignment element (22b) which are arranged one above the other in two parallel planes (16, 18) and can be displaced relative to each other along a displacement path (34), being at least partially superimposed or superimposable. Thereby, the alignment element (22a) has at least one through recess (24a) and the counter alignment element (22b) has at least one counter through recess (24b), which are arranged and designed in such a way that a clear positioning passage (99) perpendicular to the two planes (16, 18) of the alignment element (22a) and the counter-alignment element (22b), through which the at least one wire ends (14) can extend and the cross-sectional area of which can be varied by displacing the alignment and counter-alignment elements (22a, 22b) with respect to each other. In order to distort the wire ends as little as possible, the at least one through recess (24a) on the aligning element (22a) and the at least one counter through recess (24b) on the counter-aligning element (22b) each have two rectilinear edge sections (30a, 30b, 30c, 30d) which run in the respective plane (16, 18) at an oblique angle to the direction of displacement (FIG. 3).